Anchor



R. D. COBB May 24, 1960 ANCHOR 2 Sheets-Sheet -1 Filed May 23, 1958 FIG. 2.

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ANCHOR Filed ma 23, 1958 2 Sheets-Sheet? FIG. 4

INVENTOR. P/CHAQQO D- 0055,

BY WM YEW 47'7'02/VEYS.

United States Patent 7 2,937,609 ANCHOR Richard D. Cobb, 641 4th Ave., Glasgow, Mont. Filed May 23, 1958, Ser. No. 787,295 2 Claims. (Cl. 114-208) The present invention relates to anchors of the twin fluke type.

An object of the present invention is to provide an anchor of the twin fluke type which lends itself to flat stowage in a boat when not in use, and one which, when stowed in a boat, does not present a serious hazard over which a boat occupant is likely to stumble when moving around in the boat.

Another object of the present invention is to provide an anchor of the twin fluke type which is highly eflicient when in use, one in which the flukes readily and easily enter the ground when in operation, and one in which the flukes may be readily pulled from the ground when the anchor is raised.

A further object of the present invention is to provide an anchor which is economical to manufacture, one simple in structure, one sturdily constructed and having long life characteristics, and one which is highly efiective in action.

These and other objects and advantages of the present invention will be fully apparent from the following description when taken in conjunction with the annexed drawings, in which:

Figure 1 is a plan view of the anchor according to the present invention,

Figure 2 is an elevational view, the dotted lines indicating the swinging movement of the flukes,

Figure 3 is another elevational view taken from the forward end with the dotted lines showing the swinging movement of the flukes,

Figure 4 is an isometric exploded View,

Figure 5 is a plan view of the sheet from which the plates and flukes may be cut, and

Figure 6 is a fragmentary isometric view of a modified form of the shank and stops for the flukes.

Referring in greater detail to the drawings in which like numerals indicate like parts throughout the several views, the anchor of the present invention is designated generally by the reference numeral 10 and includes a shank 12 having a forward end 14 and an after end 16.

A stock 18 extends perpendicularly through the shank 12 adjacent to and spaced from the after end 16 and has its midportion rotatably supported in a hole provided in the shank 12.

A pair of flukes 20 and 22 are positioned so that the portion of the shank 12 between the forward end 14 and the rotatable support hole for the stock 18 is therebetween. The flukes 20 and 22 have their broad ends welded, or otherwise fixedly secured to the stock 18 for rotation of the latter.

The anchor 10 includes a crown assembly, designated generally by the reference numeral 24, fixedly carried upon the portion of the shank 12 between the stock support hole and the after end 16. The crown assembly 24 consists in a pair of flat elongated plates 26 and 28 positioned in coplanar relation with respect to each other with the portion of the shank 12 between the stock support hole and the after end 16 between the confronting ends of the plates 26 and 28.

The confronting ends of the plates 26 and 28 are fixedlysecured to the portion of the shank 12 between the after end 16 and thehole which supports the stock 18.

a, The end of each plate 26 and 28 remote from its point of attachment to the shank 12 is provided with apoint or prong, as at 30*with respect to the plate 28, which constitutes ground engaging means adapted to afford a fulcrum for the anchor 10 when the anchor 10 is being withdrawn from a position in which the flukes 20 and 22 dig into the ground.

Stop means is provided on the shank 12 for limiting the swinging movement of the flukes 20 and 22 away from the shank 12, as shown in dotted lines in Figures 2 and 3. Specifically, this stop means consists in, as shown in Figure 3, a pair of pins 32 and 34 extending through the shank 12 forwardly of the hole which supports the stock 18 and on each side thereof.

In Figure 6 an alternative form of the stop means is shown in which the shank 12' has a pair of outwardly projecting lugs 36 on each side of the stock support hole 38. The lugs 36 are provided with sloping inner faces against which bear the adjacent portions of theflukes 20 and 22.

The stock support hole in the anchor shank '12 is shown most clearly in Figure'4 and is designated by the reference numeral 40.

Another hole 42 extends through the shank 12 adjacent the forward end 14 and serves as a means for attaching a cable or chain for raising or lowering the anchor from a boat.

In Figure 5 a sheet is shown having lines drawn thereon which indicate how the sheet may be cut to fabricate the flukes 20 and 22 and the plates 26 and 28.

In use, the anchor 10 will lie flat within a boat and not present a hazard to an occupant of the boat when walking in the boat. Other anchors have projections from their shanks which seriously interfere with the comfort of the boat occupants when moving around. The anchor of the present invention will hold a boat in a body of water having mud or sand bottoms 'with the flukes 20 and 22 digging into such bottoms and with the plates 26 and 28 providing a fulcrum on their lower edges engaging the ground and serving to raise the flukes.

20 and 22 out of the bottom when the anchor 10 is- V shifted to a raising position by pulling on the attached anchor rope, the latter not being shown as a part of the present invention.

What is claimed is:

1. In an anchor including a shank having a forward end and an after end, a stock extending perpendicularly through said shank adjacent to and spaced from the after end thereof and having the mid-portion rot-atablysupported in said shank, a pair of flukes positioned so that the portion of the shank between the forward end and rotatable support of said stock is therebetween and having the broadends connected to said stock for rotation with the latter with the pointed ends being adapted to substantially simultaneously engage the ground in operative position, the improvement comprising a crown assembly including a pair of flat elongated plates positioned on the shank so that the portion of the shank be- V tween the rotatable support of said stock and the after end is between said plates, the plates being arranged in coplanar relation and having the ends of said plates adjacent the portion of the shank between the rotatable I support of said shank and the after end fixedly attached to said portion, and ground engaging means on each of said plates adapted to afford a fulcrum for the anchorwhen the anchor is being withdrawn from the operative position.

2. In an anchor including a shank having a forward end and an after end, a stock extending perpendicularly through said shank adjacent to and spaced from theafter end thereof and having the. mid-portion rotatably supported in said shank, a pair of flukes positioned so that the portion of'the shank betweenthe forward end and rotatable support of said stock is therebetween and having the broad ends connected to said stock for rotation with the latter with the pointed ends being adapted to substantially simultaneouslyv engage the ground in operative position, the improvement comprising a crown assembly including a pair of flat elongated plates positioned on the shank so that the portion of the shank between the rotatable support of said stock and the after end is between said plates, the plates being arranged in coplanar relation and having the ends of said plates adjacent the portion of the shank between the rotatable 15 2,633,626

4 support of said shank and the after end fixedly attached to said portion, and ground engaging means on each of said plates adapted to afford a fulcrum for the anchor when the anchor is being withdrawn from the operative position, said ground engaging means embodying 2. prong depending from the bottom edge of each of said plates adjacent the other end remote from the portion of the shank between the rotatable support of said stock and the after end.

References Cited in the file of this patent UNITED STATES PATENTS Danforth Nov. 27, 1951 Danforth Apr. 7, 1953 

